In 2369, Lieutenant CommanderGeordi La Forge required a systems engineer to assist in bridging the transporter systems between the damaged USS Yosemite and the Enterprise. When La Forge mentioned this to Barclay, who had a fear of transporters, Barclay attempted to pass the assignment off to EnsignDern, however, La Forge clarified that he meant for Barclay to join. (TNG: "Realm of Fear")